Still clearly visible are the layers of palm fronds and lime used to strengthen the sun-dried brick structure of the 4th millennium BC Sumerian ziggurat at Uruk (Warka), 39 km east of Samawah, Iraq.
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Still clearly visible are the layers of palm fronds and lime used to strengthen the sun-dried brick structure of the 4th millennium BC Sumerian ziggurat at Uruk (Warka), 39 km east of Samawah, Iraq.